65×3+65×(X-3+4)=65×3+90×(X-3-2)

195+65×(X+ 1)= 195+90×(X-5)

65×(X- 1)=90×(X-5)

65X-65=90X-450

90X-65X=450-65

25X=385

X = 385÷ 25

X= 15.4

The distance from Xiaobo's home to school is 65× 3+90× (15.4-3-2) =195+936 =113/m.